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United States Department of Agriculture

Agricultural Research Service

Title: National Phosphorus Research Project: Pennsylvania - Soil P and Overland Flow P Relationships

item Sharpley, Andrew
item Kleinman, Peter
item Weld, Jennifer
item Mcdowell, Richard - AGRESEARCH LTD

Submitted to: Internet Web Page
Publication Type: Other
Publication Acceptance Date: December 20, 2002
Publication Date: December 20, 2002
Citation: Sharpley, A.N., Kleinman, P.J., Weld, J.L., McDowell, R. 2002. National phosphorus research project: Pennsylvania - soil P and overland flow P relationships. Internet Web Page.

Technical Abstract: The effects of soil phosphorus (P) and field management on overland flow P loss from agricultural land in Pennsylvania is being studied as part of the National P Research Project (NPRP). The NPRP represents a consortium of federal and state agencies, as well as land grant universities, with collaboration in over 20 states. Pennsylvania's contribution to the NPRP has three immediate objectives: (1) quantify relationships between soil P, overland flow P and subsurface flow for Pennsylvania soils; (2) evaluate soil P extractants that can be used as indictors of soil P loss in overland and subsurface flow; and, (3) assess Pennsylvania's P Index, which identifies fields that are vulnerable to P loss. These objectives are expected to culminate in the development of cost-effective, integrated nutrient management strategies that target remedial activities on areas specifically at risk of P loss.

Last Modified: 4/19/2015
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